CN204697391U - A kind of printed circuit pads structure - Google Patents
A kind of printed circuit pads structure Download PDFInfo
- Publication number
- CN204697391U CN204697391U CN201520138412.1U CN201520138412U CN204697391U CN 204697391 U CN204697391 U CN 204697391U CN 201520138412 U CN201520138412 U CN 201520138412U CN 204697391 U CN204697391 U CN 204697391U
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- China
- Prior art keywords
- hole
- limit
- etching part
- printed circuit
- utility
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Printing Elements For Providing Electric Connections Between Printed Circuits (AREA)
Abstract
The utility model discloses a kind of printed circuit pads structure, comprise the pad body being positioned at printed substrate upper and lower surface, the through hole for plug connector elements pin is provided with in described pad body, the limit, hole of described through hole is formed with circular etching part, and the tranverse sectional thickness of this etching part increases successively gradually from limit, hole.The utility model, by before boring, pre-sets etching part on the limit, hole of through hole, thus can reduce the generation of boring batch cutting edge of a knife or a sword, simple to operate, does not need additionally to increase cost of manufacture, and can increase the drilling life of bit of drilling operating; The tranverse sectional thickness of described etching part increases successively gradually from limit, hole, thus when welding when after tin fusing, can effectively limit the tin flowing space, avoids adjacent pin to occur connecting tin.
Description
Technical field
The utility model relates to a kind of pad structure, specifically refers to a kind of printed circuit pads structure.
Background technology
Printed circuit board, also known as printed circuit board (PCB), be the generator of electronic devices and components electrical connection, adopt the major advantage of printed circuit board (PCB) to be the mistake that can greatly reduce wiring and assembling when concrete enforcement, the gentle productive labor efficiency of Automated water can be improved.Printed circuit board take insulation board as base material, be cut into certain size, at least with a conductive pattern on it, and the porose position of cloth, such as component hole, fastener hole, plated-through hole etc., it can be used for replacing the chassis of device electronic devices and components in the past, and can realize being interconnected between electronic devices and components.
General electronic devices and components all pass through pad (PAD) and are welded on printed circuit board (PCB) (PCB), but pcb board design time some product two sides have the hole of pad not need to do edge PTH hole time, just need to make two brills, during two brills, circuit is formed, have batch cutting edge of a knife or a sword after boring to produce or can pull copper falls PAD at copper PAD place, management and control is difficult to quality.And because pin is intensive during this structure welding, and pin-pitch is little, in time welding, especially easily there is the phenomenon connecting tin in adjacent pin, cause short circuit sometimes, serious will burn pcb board.
Utility model content
The purpose of this utility model overcomes weak point of the prior art, provide a kind of reduce boring batch cutting edge of a knife or a sword produce, prevent to pull copper fall PAD, can to the printed circuit pads structure of boring partially, small opening detects.
The purpose of this utility model is achieved through the following technical solutions:
A kind of printed circuit pads structure, comprise the pad body being positioned at printed substrate upper and lower surface, the through hole for plug connector elements pin is provided with in described pad body, the limit, hole of described through hole is formed with circular etching part, and the tranverse sectional thickness of this etching part increases successively gradually from limit, hole.
Concrete, the plane projection width of described etching part is 0.05 ~ 0.10mm.
Preferably, the width of described etching part is 0.08mm.
The utility model has the following advantages and beneficial effect compared to existing technology:
The utility model, by before boring, pre-sets etching part on the limit, hole of through hole, thus can reduce the generation of boring batch cutting edge of a knife or a sword, simple to operate, does not need additionally to increase cost of manufacture, and can increase the drilling life of bit of drilling operating; The tranverse sectional thickness of described etching part increases successively gradually from limit, hole, thus when welding when after tin fusing, can effectively limit the tin flowing space, avoids adjacent pin to occur connecting tin.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the cutaway view of the utility model printed circuit pads structure.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but execution mode of the present utility model is not limited thereto.
Embodiment
As shown in Figure 1 and Figure 2, the present embodiment provides a kind of printed circuit pads structure, comprise the pad body 1 being positioned at printed substrate upper and lower surface, the through hole 2 for plug connector elements pin is provided with in described pad body, the limit, hole of described through hole 2 is formed with circular etching part 3, and the tranverse sectional thickness of this etching part 3 increases successively gradually from limit, hole.
The cross section of above-mentioned etching part increases successively gradually from limit, hole, can by adopt when the designed lines film corresponding arrange to be in the light and to divide to compensate step by step to light-blocking part realize, by compensating step by step, the area shading that is in the light of line film can when exposing, according to the number be in the light, stop the light-sensitive surface part contact light of its correspondence, ensure this part light-sensitive surface in developing procedure by exposure thickness minimizing gradually, realize the notch cuttype change of etching area, and the operation such as follow-up figure electricity is normally carried out.
Concrete, the plane projection width of described etching part 3 is 0.05 ~ 0.10mm.By said structure, can avoid holing and criticize the generation of cutting edge of a knife or a sword, can ensure that again etching part has enough width and the degree of depth, and the structure of copper wall can not be destroyed.
Preferably, the width of described etching part 3 is 0.08mm.
Above-described embodiment is the utility model preferably execution mode; but execution mode of the present utility model is not restricted to the described embodiments; change, the modification done under other any does not deviate from Spirit Essence of the present utility model and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection range of the present utility model.
Claims (3)
1. a printed circuit pads structure, comprise the pad body being positioned at printed substrate upper and lower surface, it is characterized in that: in described pad body, be provided with the through hole for plug connector elements pin, the limit, hole of described through hole is formed with circular etching part, and the tranverse sectional thickness of this etching part increases successively gradually from limit, hole.
2. printed circuit pads structure according to claim 1, is characterized in that: the plane projection width of described etching part is 0.05 ~ 0.10mm.
3. printed circuit pads structure according to claim 2, is characterized in that: the width of described etching part is 0.08mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520138412.1U CN204697391U (en) | 2015-03-11 | 2015-03-11 | A kind of printed circuit pads structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520138412.1U CN204697391U (en) | 2015-03-11 | 2015-03-11 | A kind of printed circuit pads structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204697391U true CN204697391U (en) | 2015-10-07 |
Family
ID=54237637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520138412.1U Expired - Fee Related CN204697391U (en) | 2015-03-11 | 2015-03-11 | A kind of printed circuit pads structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204697391U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108770238A (en) * | 2018-07-13 | 2018-11-06 | 深圳崇达多层线路板有限公司 | A kind of inner figure design method for improving drilling and pulling copper |
| CN110167289A (en) * | 2019-06-26 | 2019-08-23 | 广州弘高科技股份有限公司 | A kind of production method of multilayer circuit board |
-
2015
- 2015-03-11 CN CN201520138412.1U patent/CN204697391U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108770238A (en) * | 2018-07-13 | 2018-11-06 | 深圳崇达多层线路板有限公司 | A kind of inner figure design method for improving drilling and pulling copper |
| CN108770238B (en) * | 2018-07-13 | 2021-07-06 | 深圳崇达多层线路板有限公司 | Inner layer graph design method for improving copper pulling in drilling |
| CN110167289A (en) * | 2019-06-26 | 2019-08-23 | 广州弘高科技股份有限公司 | A kind of production method of multilayer circuit board |
| CN110167289B (en) * | 2019-06-26 | 2020-08-07 | 广州弘高科技股份有限公司 | Method for manufacturing multilayer circuit board |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151203 Address after: 516081 Guangdong city of Huizhou province Dayawan economic and Technological Development Zone Xiangshui River Industrial Zone Patentee after: Jianye Technology Electronics (Huizhou) Co., Ltd. Address before: 516081 Guangdong city of Huizhou Province Petrochemical Road West Xiangshuihe Industrial Park of Dayawan economic and Technological Development Zone No. 28 Patentee before: Jianye Technology Electronics (Huizhou) Co., Ltd. Patentee before: Build industry (Huizhou) circuit version Co., Ltd |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151007 Termination date: 20210311 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |